~ SCHEMATIC RELEASED! ~Auto Whammy Circuit + Foot Pedal

**Battousai** · Joined: 16 Jul 2007 Posts: 34

Edit: Please add this to the advanced mods sticky.

Circuit board and controls added for auto whammy and pulsating star power activated by pedal switch. Auto whammy circuit activated by red push button and control knob varies between 2 and 5 whammies per second. Star Power is activated by foot pedal pressed and held down which pulses SELECT circuit 5 times per second for near-instant star power activation as soon as Star Power is available. Using the Co-op cord, you can also activate the other guitar simultaneously - No shouting "Now" needed!

Video: http://www.youtube.com/watch?v=u3tDF3jtp-I

Mod Instructions:

DO NOT ATTEMPT UNLESS YOU WANT TO RISK DESTROYING YOUR GUITAR, DO NOT ATTEMPT UNLESS YOU UNDERSTAND THE INSTRUCTIONS, THIS MOD WILL NOT WORK IF ANYTHING IS WRONG.

All supplies EXCEPT the Opto-isolators and foot pedal can be bought at Radio Shack. I got Opto-isolators from eBay, Frys also has them. Foot pedal came from a garage junk box???. Any single-pole-single-throw (SPST) switch mounted so you can press it with your foot will work. An old guitar distortion pedal can be modified to work.

Supplies Needed:
1x Circuit Breadboard ----------- 1.79
2x 555 IC timers ----------------- 1.69 each
3x Opto-isolator NPN ICs ------- 1.49 each
5x 8 pin DIP sockets ------------- .69 each
2x 1k resistors -------------------- .99 pack
2x 10k resistors ------------------ .99 pack
1x 4.7k resistor ------------------- .99 pack
2x 10 mfd capacitors ------------- .99 each
3x 3.3k resistors ----------------- .99 pack
1x 6.8 mfd capacitor ------------- .99
1x 10k potentiometer ----------- 2.89
1x black knob -------------------- 1.99
1x "soft feel" SPST pushbutton - 2.59
2x 1/8 inch mono audio jacks -- 3.99 pack
1x 9V battery ---------------------- .99
1x 9V battery snap connector -- 1.99
1x Foot Pedal with plug----------- ???

Cat 5 network wire pairs
Solder
Soldering iron

Schematic diagram- Click Here for pencil version

Video: http://www.youtube.com/watch?v=u3tDF3jtp-I
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[X] 5* Jordan
[X] Obtained Log
Auto Whammy Bar Check it out, make your own!!

**esp00shredder** · Posted: Wed Aug 08, 2007 8:24 pm Post subject:

woahhhh dude. thats sick. i wish i had a working whammy... wait i wish i had a working guitar. lol this looks veryy veryy complicated. wayy to hard for me.
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**Nazo64** · Joined: 13 May 2007 Posts: 651

That's a hella lot of wires!

**Squirrel** · Posted: Wed Aug 08, 2007 10:46 pm Post subject:

Nice, that's beyond my head in electronics...

Very nice job, looks good too.
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**barbaricjethro** · Joined: 18 Jun 2007 Posts: 86 Location: Lakeview, MI

i know the question that you were wondering, and yes you are a circutry genius! awesome job, i will attempt something like that when i have the money. where did you get all the supplies?
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JD

**OmicronPersei8** · Joined: 01 Apr 2007 Posts: 42 Location: McHenry, IL

Excellent work.

You wouldn't happen to have a wiring diagram/ how to guide in the works for the auto wammy, by chance?

While it would be filed under "advanced" mods for sure, I think it might be one of the most valuable mods available.
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XBL GT: LrrrofOmicron

**torix266** · Posted: Thu Aug 09, 2007 4:11 am Post subject:

That's sweet! I'm too scared to do anything to my guitar in case i mess it up.
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**Battousai** · Joined: 16 Jul 2007 Posts: 34

I'll post the schematic diagram of it later for you guys
_________________

[X] 5* Jordan
[X] Obtained Log
Auto Whammy Bar Check it out, make your own!!

**Battousai** · Joined: 16 Jul 2007 Posts: 34

Now includes enough to make your own!
_________________

[X] 5* Jordan
[X] Obtained Log
Auto Whammy Bar Check it out, make your own!!

**uhhcollege** · Joined: 02 Aug 2007 Posts: 131

Holy shit! GJ

**The-Guitar-Hero** · Joined: 01 Aug 2007 Posts: 62 Location: Hartland, MI

I WILL STICK TO USEING THE WHAMMY BAR

**kelso080** · Joined: 14 Jul 2007 Posts: 41 Location: saskatchewan

best mod ive ever seen

**Mongoose** · Joined: 11 Aug 2007 Posts: 61 Location: Carlisle, PA

Sweet!
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**HighRoller21** · Joined: 23 May 2007 Posts: 24

Could u make a diagram of how to make it so there is an auto whammy with just on on off switch?
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**lukecantplay** · Joined: 01 Apr 2007 Posts: 835 Location: Salad, Saxet